Door latch



Marc h 12, 1929. J. soss 1,704,770

DOOR LATCH Filed May 14, 1926 INVENTOR 7 58791 505s ATTORNE PatentedMar. 12, 1929.

PATENTFO FF-ICE.

JOSEPH 8088, O1 BROOKLYN, NEW YORK.

DOOR LATCH.

Application filed May 14,

' This invention relates to door latches and particularly to devices ofthis class for use in connection with the doors of motor vehicles; andthe object of the invention is to provide,

a door latch with means cooperating with the bolt of a lock mounted in adoor to provide an anti-frictional engagement of the bolt with saidmeans and further to compensate for any movement of the bolt withreference to the latch in any direction; a further object being toprovide a latch device wit-h one or more steel balls in connection withwhich the bolt of a lock is adapted to operate when the door is inclosed position; a still further object being to provide in combinationwith a latch device employing an anti-frictional member, 'a latch bolthavin two beveled sides, the bevel on one side being slight withreference to the longitudinal plane of the.

bolt and said side cooperating with the antifrictional member of thelatch in such manner as to retain the latch bolt in connection with saidanti-frictional member under tension at all times; and further intheprovision of a straight face on said side of the bolt arranged inparallel relation with the longitudinal plane of the bolt; a stillfurther object being to provide a latch 'device employing at the outerend thereof a raised beveled portion over which the inner beveled sideof the bolt is adapted to pass, said raised portion forming an auxiliarylatch stop, and inwardly of said raised portion, the latch device isprovided with an anti-frictional device engaging the straight orslightly beveled side face of the bolt to retain the door in closedposition and under tension; and with these and other objects in view,theinvention'consists in a device of the class and for the purposespecified, which is simple in construction, eflicient in use, and whichis constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the sepa rateparts of in improvement are designated by suitable re erence charactersin each of the views, and in which:

Fig. 1 is a face view of a door frame showing one form of latch devicemounted in connection therewith.

1926. Serial No. 109,047.

Fig. 2 is a partial section on the line 22 of Fig. 1 and illustrating apart of the door and the bolt thereof in closed position, and in dottedlines, in a partially closed position.

1* 1g. 2* is a detail view similar to Fig. 2 but showing a modification.

Fig. is an inside view of the latch device shown in Figs. 1 and 2. Fig.4 is a view similar to Fig. 1 but showmg a mod fication.

g. 5 s a section on the line 5-5 of Fig. 4.

Fig. is a view similar to Fig. 1 but show- 111 a slight modification. Fg. 7 is an end view of the device shown in Fig. 6. Fig. 8 is a viewsimilar to Fig. 2 but showing another modification.

Fig. 9 is a -section on the line 99 of Fi 8; and, b Fig. 10 is a viewsimilar ng another modification.

In the drawing, I have indicated. at 11 the framework of a door inconnection with which the latch device 12 is mounted as seen in Fig. 2of the drawing. At 13, I have indicated a part of the door having alatch bolt 14, which in the construction shown in Fig. 2 of the drawing,is provided with a beveled inner face 15 and a slightly beveledouter-face 16, 30 while in Fig. 2 of the drawing, I have shown amodified form of bolt 14 having a beveled inner face 15 and a slightlybeveled outer face 16 which terminates inthe outer end of the bolt in acomparatively straight face 16" arranged in parallel relation withreference to the longitudinal plane of the bolt or movement of the bolt.

The latch device 12, in the construction shown in Figs. 1 to 3inclusive, is preferably fashioned from sheet metal to form at the outerend thereof a raised beveled face 17 having a screw aperture 18 adjacentits outer end for receiving an attaching screw 19. The inner end of theraised portion 17 terminates in a stop shoulder 20 forming an auxiliarystop for the bolt 14 to retain the door 13 in a partially closedposition. Inwardly of the stop 20, the device is fashioned to form apair v of oppositely arranged ears 21 by curling the metal from whichthe stop evice' 12 is 70 to Fig. 9 but showformed, and -so fashioned toprovide between the cars 21, a seat for a steel ball 22 the periphery ofwhich projectsbcyond t e inner faces23 of the ears 21 as clearly seen inFigs. 1 and 2 of the drawing, whereby the outer bevel face 16 of thebolt 14 is adapted to engage said ball to lock the door 13 in its closedposition. Itwill be understood that the bolt 14 is of the usual springpressed type normally projected by the action of the spring and-thebeveled face 16 istsuch as to provide a tensional engagement of the bolt14 with the ball 22 at all times, the bevel face compensating for anywear that may-prevail in the extended use of the door, the bevel face 16being at such an angle as to prevent the opening of the door until thebolt 14 has been retracted by the knob or handle usually employed forthis purpose. With the structure shown in Fig. 2*, it will be apparentthat the bevel face 16 will compensate for the wear on the bolt and inthe initial position of .the parts, the bolt 14 or 14 is held inwardlyof its normal extreme outward movement by thebevel faces 16 and 16*. I

The space formed between the ball '22 and the stop shoulder 20 isadapted to receive the bolt 14, and the latchdevicewithin this space isprovided with a screw aperture 24 for receiving a screw 25 to aid insecuring the de-' vice to the door frame 11 as will be apparent. It willalso benoted on a consideration of Fig. 2 of the drawing, that thebottom portion of the latch plate is fashioned to form a seat for theball 22, as seen at 26.

With the construction shown in Figs. 6 and 7 of the drawing, theattaching device is of.

the same general contour as the device shown in Figs. 1 to 3 inclusiveexcept that the device is made from a solid piece of metal by molding,die-casting or forging, or in any other desired manner. With thisconstruction, theears 21 are joined and reinforced by the formation ofthe "arc-shaped recesses 27 in the opposite sides thereof, one of whichrecesses is seen in Fig. 7 of the drawing. In Figs. 4 and 5 of thedrawing, I have shown another modification of the construction shown inFigs. 1 to 3 and 6 and? wherein two balls 22 are supported in acomparatively wide latch plate instead of one ball as shown in saidother figures. In this construction, the cars 21 are more widely spacedapart by the greater width of the body of the device 12 and interposedbetween said cars is a. spacing member 28 secured to the latch plate byriveting or in any other manner as seen at 29, and the opposite faces ofthe member 28 are provided with arc-shaped recesses 30 to receive theballs 22". It will be understood that the structure shown in Figs. 4 and5 is intended for use in connection with comparatively wide latchboltssuch as the bolts 14 and 14. In Figs. 8 and 9 of the drawing,

' I. have shown .another modification wherein a latch device 31 ,isfashioned from a solid body of metal as in the formation of the latchdevices shown in Figs. 4, 5, 6 and 7, the outer end ortion beingfashioned to form a raised 'beve ed face 32 similar to the bevel face17, and which terminates at its inner end in a stop shoulder 33 similarto the shoulder 20. In spaced relation totheshoulder 33, the device 31is provided with a raised body 34 at its inner end within which ispermanently against displacement from the body 34 by the seat 36 in saidbody in which seat; the roller rotates.

In Fig. 10 of the drawing, I have shown another modification wherein theinner end portion of a latch plate 37 is provided with spaced cars 38 inwhich are mounted screws 39 havin conical adjacent ends ada ted to entersim lar recesses 40 in the opposite ends of a roller 41 mounted withinand between said ears 138. It will be iinderstood that the screws 39serveto retain the roller 40 in position and also permits of-therotation of said roller on said screws. From the foregoing it will beapparent that when the balls are employed, the latch bolt in its severalmovements thereof caused by vibration or the like and when the'door isin closed posi tion, may operate upon the bearing balls universally toeliminate friction noises of any kind or class that might otherwiseprevail when the latch 'bolt would slidably engage a stationary body ona latch bolt. With the rollers employed, movement of the latch boltlongitpdinally of the bolt action will operate to prevent noises andreduce friction between saidparts in such operation. 7 It will beunderstood that my inventionis not necessarilylimited to the specificstructural details herein shown and described, nor the specific contourof the latch device or the manner of its making, nor am I- necessarilylimited to the specific form of. latch bolts herein shown and described,and various changes in and modifications of the construction herein setout may be made within the'scope of the appended claims withoutdeparting from the spirit ofvmy invention on of Figs. 2 and 3 of thedrawing that the latchv sacrificing its advantages.

It will be noted upon a consideration or lock bolt 1414 extendsbeyondthe axis of theball22 with'relation to a line extend;

- devices employed to-efiect the locking of the' w door or retainin thesame a ainst accidental displacement.- t will'galso' enoted that in theoutward movement of the bolt 14 by its position in said door frame, andsaid latch ,usual spring, and the -.engagement of the beveled face 16with the ball 22 or. the other anti-frictional device-employed, awedge-like action is produced between the two movable bodies to firmlywedge and lock the bolt in position and to retain the same in suchposition under tension, I Having fully described my invention, what Iclaim as new and desire to secure by Letters Patent, *is:

, 1. A latch device comprising a lbod adapted to be secured to a doorframe, a ba I mounted in fixed position in said bodyand rotatable in itssupport and against which the outer side face of the latch bolt of adoor is adapted to rest when the door is in'a closed device beingprovided outwardly of said ball with a beveled striking face having astop shoulder in conneciton with which the latch position.

bolt is adapted to operate to form an auxilia door catch for retainingthe door in a partially closed position.

2. A latch of the class described comprising a body, one end of which isfashioned to form a beveled striking face terminating at its inner endin a stop shoulder, means at the-other'or, inner end of the device forsupporting an anti-frictional member therein which projectsbeyond theinner face of the device and in connection with the projecting end ofwhich a latch bolt of a door is adapted to operate in retaining the doorin closed 3. A latch of the class described comprising a body, one endof which is' fashioned .to form a beveled striking face terminating atits inner end in a stop shoulder, means atv the other or inner end ofthe device for supporting an antl-frlct-ional member therem whichprojects beyond the inner face ofthe device and in connection with theprojecting end of which a latch bolt of a door is adapted to operate inretaining the door in closed position, and means for securing said latchdevice to the frame of a door.

4. Alatch of the class described comprising a body, one end of which isfashioned to form a beveled striking face terminating at its inner endin a stop shoulder, means at the other or inner end of the device forsupporting an anti-frictional member therein which projects beyond theinner face of the device and in'connection with the projecting end ofwhich a latch bolt of a door isadapted to operate in retaining the doorin closed position, means for securing said latch device to the frame ofa door, and said antifrictional device comprising a steel ball wherebyrelative movement of the latch bolt may be compensated for by the rotarymovement of said ball. I

' 5". The combination with-a-;door' and a sprin actuated bolt carriedthereby, said bolt i'aving its'inner face beveled and its opposite orouter face "slightly beveled, of a latch device ,adapted to be securedto the ipi'in actuated bolt carried thereby, said o t having its innerface beveled end its opposite or outer face sli htly beveled, of a latchdevice adapted to he secured to the door frame and provided at its innerend with projecting anti-frictional means in connection with which theouter face of the bolt is adapted to operate for retaining the door inclosed position, and means on said latch device outwardly of saidanti-frictional means for forming an auxiliary stop.

7. The combination with a door and a spring actuated bolt carriedthereby, said bolt having its'inner face beveled and its opposite orouter face slightly beveled, of a latch device adapted to be secured tothe door frame and provided at its inner end with projectinganti-frictional means in connection with which the outer face of thebolt is adapted to operate for retaining the door in closed position,and means on said latch device outwardly of said anti-frictional meansfor forming an auxiliary stop, said last named means involvinga beveledface over which the bolt isadapted to pass prior to'its engagement withsaid anti-frictional device. 1

.8. The combination with the spring actuated bolt of a door lock, saidbolt having a slightly beveled outer face, of a latch deyice providedwith anti-frictional means adapted to be. engaged by said beveled faceof the bolt to firmly secure and retain the bolt in position when thedoor is closed, and said latch device having an auxiliary stop outwardlyof said frictional device adapted to be engaged by said bolt to retainthe door in a partially closed position.

9. A door latch of the class described, the inner end portion of which,when mounted in the door frame and with reference to the'swinginfgxmovement' of the door is provided with a edly supported androtatable antifrictional device which projects beyond the inner end ofsaid latch whereby in the engagement of the latch bolt therewith whenthe door is closed, said bolt is free to engage the projecting portionof said'anti-frictional device only.

10. A door latch of the class described,

I projects beyond the inner end of said latch.

whereby in the engagement of the latch bolt jecting portion of said antifrictional de- 5 vice only, and the outer end portion of the latch beingprovided with an inwardly bev- 4 eled surface, terminating in asupplemental stop shoulder arranged on said latch ont- Wardly of saidanti-frictional device. therewith, said bolt 1s free to engage the pro-In testimon that I claim the foregoing as 10 my invention havesigned myname this 7 th day of May 1926. r

JOSEPH Sosa.

